[Pavilion Gaming 15 ec-0002]: Trouble with keyboard

[Relvarten]

By tradition, i apologize for my english (not my main language).
But here is my problem:

I have an issue with keyboard multiple pressing (any key may or may not work while it is under pressing, absolutely random):
https://youtu.be/70BXd9ju414?t=45
(0:45 - 1:00)

Service center replaced whole topcase by warranty, but the problem is still exist.
Even authorized service center does not understand my problem, so here i am.

[Echo_Lake]

@Relvarten

Thank you for posting on HP Support Community.
 

Don't worry as I'll be glad to help, I have a few troubleshooting steps we could try to fix the issue:  

Use HP PC Hardware Diagnostics to complete functional test of the keyboard and identify any problems with the hardware.

1. Download the latest version of HP PC Hardware Diagnostics.

2. In Windows, search for and right-click HP PC Hardware Diagnostics for Windows, and then select Run as administrator.

   

3. Click Component Tests, click Input Devices, and then select the Keyboard Test.

   

4. Click Run once to begin the test.

   The test ends when you complete the tasks or after 3 minutes.

For more information about using the HP PC Hardware Diagnostics for Windows, go to HP PCs - Testing for Hardware Failures.
 

Hope this helps! Keep me posted for further assistance.
Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.

[Relvarten]

I have tried everything. Even HP Support Assistant keyboard checker. Separatly keys work very fine. But if I use 2+ keys – one of them may "stuck", or may not (random). Every service center in my city say: "if your keyboard was replaced, but problem is still exist – the problem may be in multicontroller". As they say, i won a prize, but in evil lottery. 😕 I want to solve this problem, but i didn't can, because I work 60 hours per week. Actually, I still can't spend too many time for this, but I will not retreat, because this defect ruins everything in "gaming" notebook. I do not know what i should do, If even an authorized service center can't see this problem, however, they replaced whole topcase after 2 (!) months. I can't wait so long without notebook again.

[Echo_Lake]

@Relvarten

Thank you for posting back.
 

I appreciate your efforts to try and resolve the issue. This sounds like hardware related issue with the keyboard and in order to fix this issue,  your computer needs to be serviced.  As we have limited support boundaries in the support community as of now. 

I would request you to reach out to our Support and our Support Engineers should be able to check the available service options in order to diagnose the computer physically.  HP Support can be reached by clicking on the following link: www.hp.com/contacthp/​​​​​​​
 

Please feel free to contact us here anytime you need any further assistance. Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.